Water jet coming out of a stationary horizontal tube at speed v strikes horizontally a massive wall moving in opposite with same speed. Water come to rest relative to wall after striking. Treating A as cross-section of jet and density of water as `rho`. Select the correct alternative(s)
A. force exerted on the wall is `2rhoAv^(2)`
B. force exerted on the wall is `4rhoAv^(2)`
C. rate of change of kinetic energy of water jet striking the wall is `8 rhoAv^(3)`
D. rate of change of kinetic energy of water jet striking the wall is zero
